The 0.4555 CHK Reamer by Field Tool Supply is engineered for high-precision applications. Constructed from high-speed steel (HS), this reamer is built to withstand rigorous use while maintaining sharpness. With a diameter of 0.4555 inches, it is perfect for creating clean, accurate holes in various materials. The straight flute design allows for efficient chip removal, making it ideal for both manual and machine operations. Its stainless steel finish provides excellent corrosion resistance, ensuring a long service life. This tool meets industry standards for quality and performance.